Meeting the demanding requirements of No Child Left Behind (NCLB) falls most heavily on the school principal. A variety of credible studies prove that schools with good library programs have students who do better academically as measured by standardized test scores. Administrators may not be aware that they have a powerful ally in the school library media specialist, but improved library programs play a large role in improved test scores and more. The school library media program can be a critical partner in implementing strategies that not only improve test scores, but actually increase the reading abilities of all students. This guide provides practical ways in which principals can discover how well supported library programs can specifically and effectively advance their school's advancement toward NCLB's goals and help ensure that schools remain committed to good educational practices that exceed the requirements of NCLB. A list of additional resources is provided. (Lists 6 sources.) [This publication was developed and distributed through a grant from the Bound to Stay Bound Books Foundation.]